The server IP for horde is zombiehorde.net. You can copy server IP, find Discord, website and more information in the server info section.
Open your Launcher, then click the "Play" button and select "Multiplayer" option from the menu.
Click "Add Server", paste the text zombiehorde.net in "Server Address" box, then hit "Done".
It usually takes a second or two, but once the connection is available, it should turn green.
Now you may click on "Join Server" button to play on horde.
There are 2 players playing horde right now.
horde supports Minecraft version 1.17, with some servers you can also lower versions to connect and play on the server.
The horde server is currently located in United States, was last checked 3 minutes ago and has a very good connection.